Battery handlamp



I closing f cuil, lo preveni'; ziccidenal YORK.

fSSGNOR T0 UNITED STATES ELECTRIC PRATIOE' 0F NEW ETTEEY egipncaeon fue@eprnec, 191e.

To all 'whom it may con ce m 'la-mns, ciE which the following aspecilied on the battery receiving casing and isv .adapted lo 'normallyconnect. `the lamp and the end ci' lie casing; in circuit with thebattery.. The end ci lie casing' opposile he end ofthe lamp is usuallyclosed by a cap carrying e, Spring, which not only firmly holds theerminal of the batery in contact Wil-l1 'she terminal of the lamp, bulyalso ieel engages and ,makes Contact Willi he other 'lerninal of thebalzery 'lo coniplele '-he c1rcui. inl the usual metal casing hand lamp,the cap nolonly has a inel'allicconaci. with the casing itself, but alsowith a spring' so Ethel the circnil is completed through Jche Spring,the cap and 'the casing.

The circuit closing; switch will sometimes loe eccidenlally :shifted (aswhen the lamp is in Jche lool boi: oi an automobile), thereby checircuit and causing che batery lo discharge.

@ne of' the @eje/cls of this invention, therefore, is to provide aba'ery hand lamp, hav'- ing'prcyisions whereby 4vbhe circnil may beopened 'lio prevent eccideni'al lighi nir of lamp by lie closing; oi'jhe circuit lhrong'h inadvmftenlJ shifting of the switch.

' Another ohject is ,lo provide a ballery hand lamp employing means loopen 'lie ci!A- lamp, hin; which means is construct-eden as loii'iterere Wii'zli che vnormal desirable o emilion of elle circuleclosing switch.

' Further objeczs will appear iii-oni lie detail descilpion laken inconneclion with che' accom*f7 nying drawing, in which: l? 1 longitudinalverlical secion of vthe hand lain@ embodying 'this dell-ail of Fignre 1,

Speecaton of :Letters Patent.

lighting of the" Aanni ne casing, s owing; im con-' Palenled Mar. 14,1922. serial no. 293,694.

showing the mountingoi" one of the contacts on he casing; and

lfigure 5 is a deail similar io Figure 2, but illustrating anotherembodiment of his invention.

Referring lo the accompanying drawing, und more particularly toFigures 1. to Il inclusive, 1 designaes a casing oi metal, havingenlarged threaded ends 2 and 3, ivhich are adapted lo receive thethreaded rings el and 5 respectively. The ring 4 has a. closed end 6forming an end cap and carrying -a spring l', of helical forni, adaptedto bear agains and make Contact with one end ter minal of ay battery 8carried by the casing, it being understood that there are two or morebatteries arranged end to end in a single cover or carton of paper orother light insulating material.

' As more fully disclosed in application Serial lilo. 269,704. lcdJanuary 1919, er ranged alv the other end of the casing is e relecor 9which has a.' threaded thimble l0, adapted 'to receive the metallicterminal 11 of a lamp 12. This reflector has a flange 13 adapied toengage and make contact with a metallic ring 14, spaced from the endring 3 by ar ring` 15 of insulaling material; the rings 14 and 15 orelhreaded to correspond with che threaded end 3 so brat the rings arearranged in nested relation Wil-hin che end 3 of the casing, but wherebythe Contact ring 1eis insnlaed from the casing. The insulating' ring 15is preferably oy'ided with an end flange 16 to forni e` s-'opend tovalso insulate the rcector from the end of the casing.

ll/ouned on the lla-nge 13 oi Jche reflector is a lens 1'? which isretained in place'by a Flange 18 oi.' the ring" 5; the refiecor flange13 ,is of smaller diameter than the' ring 5 so that il, will not Contactwith the ring. and he relieeor body makes a snught with he cornadcyrintgr 15, this'conliact ring making a. irm mechanical connection withthe insulating ring' 15 in order hat the contact'ring may be firmlyretained in osiion.

The. casing is Jroielfe to receive Wash 2OA of material, the lierhaving/- Ernie-lion "ao enter' einem; n

' chanically connected is of sufficient diameter so a slight turn, asshown 1n connected with the contact ring 14. Mounted on the casing isany suitable circuit closing switch, comprising, in this case, a housing24, of metal, electrically andrmewith the casing and having a pivotallcontact 25 operated by a button and a sliding contact operated by asliding thumb piecee28; these contacts are so positioned. as to engageand make contact withthe contact 21 connected with the contact ring 14C.The other terminal 29 or" the battery engages and makes contact with acentral terminal 30 of the lampi rlhe cap 6 has mounted thereon a disc31 of insulating material, having a Bange 32 and the cap is providedwith an enlarged bead 33 at its end. rlhe spring 7 which engages thebattery terminal, is mounted in the cap, but is normally insulatedthere- 'from by the disc 31 and its flange 32, thev outer convolution othe spring engaging the flange 32 of the disc and wedging the same intothe bead 33 so that the spring, insulating disc and cap are firmly heldtogether as a unit. A small metallic disc 3-1- is secured to the insideface of the insul ated disc 3l by a metallic rivet 35 which makescontact with the metallic end cap. iihe disc (or the head otlthe rivet35) that when the the casing, the

cap is screwed tightly on will cause the coni ression of the sprinoinsite convolution thereo which engages Ithe end terminal of thebattery, to be pressed against and make contact wit the disc 34: asshown in Figure 1 and thus connect the end terminal of the battery withthe metal casing, and, therefore, with the switch contacts 25 and 27,electrically connected to the casing; when, however, the end cap isslightly unscrewed by giving it Figure 2, the inside convolution 'of thespring, while still engaging the end terminal of the battery, will moveout oi contact with the disc 34 so that the circuit between the endterminal of the battery and the casing is broken.

Tlv/hen either of the contacts 25 or 27 is moved into engagement with',the contact 21, the circuit will be closed through the contact on thecasing, the contact 21, the lead 22, the contact ring the lamp terminal1l, the lamp filament, the

lamp 'terminal 30, the battery 8, the spring l. the disc 3l, (assumingthat the cap is tightened), the cap 6, and the casing 2 if. hmvever,theend cap (i is given a slight turn, the contact between it and thebattery ill be breiten so that the circuit cannot closed at this time,by accidental shifting the movable switch contacts 25 or 27. it will,furthermore, rcilector, forming the lamp carrying base, insulated fromthe metal casing and that this is obtained in a simple and eiective 14,the reflector 9,

be noted that theA manner through the vrovision of the contact ringinsulated Arom the end of the casing by the simple insulating ring. 1over, the end battery terminal can be insulated from the cap and thecircuit broken bv giving a turn to the cap as heretofore described.

It will further be seen that with this construction, it is possible toobtain, in a metal casing'structure, either a duration or flash contact,the former being obtained by movement of' the thumb piece and the latterby movement of the button 2G. The movement vof the thumb ieee to closethe circuitl is a normal one orward toward the re- -iiector end of thecasing as is naturally desired in the manipulation of'the lamp; this isattained by connecting the main or normal switch, arranged intermediatethe ends of the casing, and the auxiliary switch at the cap end, by afixed lead, which forms. in this embodiment, Athe metallic wall of thecasing.

In the embodiment shown in Figure 5, the insulating disc 31 isperforated as shown at 36 and the inside convolution ot the spring 7terminates in a rearwardly projeoting ortion 37 adapted to enter theperforation and make contact with the metallic cap G-when the' cap isscrewed tight on the casing. When, however, the cap is loosened, theterminal 37 will move out of contact with the end cap so as to break thecircuit as shown in Figure 5, and, therefore, prevent accidentallighting of the lamp at this time.

It is obvious that various changes may be made in the details ofconstruction, within the scope of the appended claims, without departingfrom the spirit of this invention; it is, therefore, to be understoodthat this invention is not to be limited to the specific constructionshown and described.

Having thus described the invention, what is claimed is:

l. A battery hand lamp having a batteryreceiving casing provided with amovable cap, a lamp on the easing and a circuit closing switch on thecasing adapted .to normally connect the lamp with the battery throughthe cap, characterized by means operable upon movement of the capadapted to dis.

connect the same fror the battery in ordei1 to prevent accidentallighting of the lamp.

2. A battery hand lamp having a metal lmttery-receiving casing providedwith a movable Inetal cap in contact. therewith, a lamp on the casing,and a circuit closing switch on the casing adapted to normally connectthe lamp with the battery through the cap, characterized by meansoperable upon movement of the cap adapted to disconnect the same fromthe battery in order to prevent accidental lighting "t the lampreceiving casing provided with a batteryretainin cap, a lamp on thecasing, and a circuit c oslng switch on the casing in circuit with thelam and the cap, characterized by means' opera le upon movement of thecap adapted to disconnect the same from the battery in order to preventaccidental lighting of the lamp.

4. A battery hand lamp having a metal battery-receiving casing providedwith a metal battery-retaining cap in contact with the casing,a lamp onthe casing, a circuit closing switch in contact with the casing andconnected with the lamp, characterized by means operable upon movementof thecap same from A'the adapted to disconnect the prevent accidentallightbatter in order to ing o the lamp.

5. A battery hand lamp, comprising, a metal battery-receiving casing, alamp at one end thereof, a circuit closing switch on and electricallyconnected'with said casing adapted tonormall connect said lamp incircuit with said battery, a metal cap movsaid lamp.

ably mounted onthe other end of said caslng, and a contact on said capadapted upon movementthereof to one position to connect said batterywlth said switch through said casing .as an intermediatev conductor,'andadapted in another position to o len said circuit and prevent accidentallig ting of 6. A battery hand lamp, comprising, a metalbattery-receiving casing, a lamp at one end thereof, a circuit closingswitch on and electrically connected with said casing adapted u onmovement towards said lamp to norma y connect said lamp in circuit withsaid battery, a metal cap movably mounted on the other end of saidcasing, and a. contact on said cap adapted upon movement thereof to onebattery with said switch through said casi ingz and adapted uponmovement to another position to o en said circuit and 'preventaccidental lig ting of said lamp.

In testimony whereof I affix my signature this 28th day lof A ril, 1919.

ERlglilSTl ALSCHULER.

position to connect said

